Home / 18,299.36-25,234.26-15,655.52

Finding the Fourth Proportional to 18,299.36, 25,234.26 and 15,655.52

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Solution

The fourth proportional to 18,299.36, 25,234.26 and 15,655.52 is: 21,588.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,299.36 : 25,234.26 = 15,655.52 : x
  2. Step 2: Convert to fraction form
    18,299.36/25,234.26 = 15,655.52/x
  3. Step 3: Cross multiply
    18,299.36x = 25,234.26 × 15,655.52
  4. Step 4: Simplify right side
    18,299.36x = 395,055,462.12
  5. Step 5: Solve for x
    x = 395,055,462.12/18,299.36
  6. Step 6: Final answer
    x = 21,588.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.